Borough of Chambersburg

What This Utility Data Tells You

Borough of Chambersburg is a municipally-owned utility operating in Pennsylvania under EIA identifier 3329. It reports service to approximately 11,639 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.

In 2023, the average Borough of Chambersburg customer experienced 27.9 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. Over the same period, SAIFI (outage events per customer) was 0.35, putting the typical customer at roughly 0 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 8.9 minutes, and the spread against the headline 27.9 indicates how much weather, versus routine infrastructure, drove the outage total.

Borough of Chambersburg has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. Over that span, SAIDI rose from 14.1 to 27.9 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.